<html>
<head>
    <title>读取剪贴板内容</title>

    <script type="text/javascript">
        function getClipboard() {
            if (window.clipboardData) {
                return (window.clipboardData.getData('Text'));
            }
            else if (window.netscape) {
                netscape.security.PrivilegeManager.enablePrivilege('UniversalXPConnect');
                var clip = Components.classes['@mozilla.org/widget/clipboard;1'].createInstance(Components.interfaces.nsIClipboard);
                if (!clip) return;
                var trans = Components.classes['@mozilla.org/widget/transferable;1'].createInstance(Components.interfaces.nsITransferable);
                if (!trans) return;
                trans.addDataFlavor('text/unicode');
                clip.getData(trans, clip.kGlobalClipboard);
                var str = new Object();
                var len = new Object();
                try {
                    trans.getTransferData('text/unicode', str, len);
                }
                catch (error) {
                    return null;
                }
                if (str) {
                    if (Components.interfaces.nsISupportsWString) str = str.value.QueryInterface(Components.interfaces.nsISupportsWString);
                    else if (Components.interfaces.nsISupportsString) str = str.value.QueryInterface(Components.interfaces.nsISupportsString);
                    else str = null;
                }
                if (str) {
                    return (str.data.substring(0, len.value / 2));
                }
            }
            return null;
        }
        function readClipboardData() {
            var str = getClipboard();
            var len = str.split("\n");//获取行数

            document.getElementById("txtContent").value = str;
        }

    </script>

</head>
<body>
<input type="button" value="读取剪贴板内容" onclick="readClipboardData();" />
<br />
<textarea rows="20" cols="60" id="txtContent"></textarea>
</body>
</html>
